/Engine/Plugins/Online/OnlineSubsystemUtils/Source/OnlineSubsystemUtils/Public/SpectatorBeaconHost.h
Delegate fired when a the beacon host detects a duplicate reservation
typedef TBaseDelegate_OneParam< void, const [FSpectatorReservation](API\Plugins\OnlineSubsystemUtils\FSpectatorReservation) & > FOnSpectatorDuplicateReservation